diff --git a/requirements-dev.txt b/requirements-dev.txt
index 73b0d97..8283296 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,6 +1,6 @@
 bump2version==1.0.1
+numpy==1.21.4
 h5py==3.6.0
-numpy==1.21.3
 packaging==21.2
 pytest==6.2.5
 pytest-flake8==1.0.7
diff --git a/requirements.txt b/requirements.txt
index 918dcaa..80ef9fa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
+numpy==1.21.4
 h5py==3.6.0
-numpy==1.21.3
 packaging==21.2